#bottom {
	width: 780px;
	height: 50px;
	background-color: white;
	float: left;
	margin-top: 4px;
}

#bottom li {
	text-align: center;
	background-color: skyblue;
	width: 770px;
	height: 40px;
	margin-left: 5px;
	margin-top: 5px;
	line-height:40px;
}
